2020 BMW 3 Series 3.0 M340i

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i Auto 4WD Euro 6 4dr (368 bhp)
• Year: 2020
• Mileage: 59,995 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 368 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series is advertised with 59,995 miles on the clock. The dealer is asking £28,990, which is £898 above the AskCar estimate of £28,092. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 22 days ago. Its asking price has since fallen by £1,000. It is advertised by Performance 28 Cars in Chester LE Street. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £898 (3%) over the AskCar estimate of £28,092.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

A 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,000: the median of the 65 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 22 days.

Price history

AskCar first saw this advert on 16 October 2026 at £29,990. Its asking price is now £28,990, £1,000 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 16 October 2026: £29,990
• 6 November 2026: £28,990

Mileage and MOT

Advertised mileage is about 800 miles higher than the median mileage of a 2020 BMW 3 Series on AskCar.